(Richmond, IN)--Details of a Richmond murder were revealed Wednesday in Wayne Superior Court I when 19-year-old Robert Campbell changed his plea to guilty.  Campbell testified for more than an hour about the murder of 43-year-old Michael Sekse.  Campbell testified that Sekse had come to a home on Sheridan Street to buy 15 pounds of marijuana for more than $11,000.  But, Campbell said that he couldn’t come up with that much of the drug, so he and four other people decided they would lure Sekse to a shed in the back yard and rob him of the cash.  Campbell said Wednesday that Jon Gray, Montell Westfall, Matthew Allen, and David Lady were all riding scooters and smoking pot in an alley when Sekse arrived.  Sekse entered the shed and, according to Campbell’s testimony, was stabbed from behind in the neck by Gray.  Campbell then grabbed a gun that he had placed in the shed and shot Sekse.  Campbell testified that he and Sekse had conducted drug business in the past with no altercations.  Campbell faces a maximum penalty of life in prison.  His sentencing date has been set for June 10.